L9856

Part: L9856 — STMicroelectronics

Type: High-Side Driver

Description: The L9856 is a high voltage high-side driver manufactured with BCD "OFF-LINE" technology, capable of driving N-Channel Power MOS transistors with a high-side floating supply up to 160 V and 500 mA source/sink current capability.

Operating Conditions:

• Supply voltage (VCC): 4.4–6.5 V
• Operating temperature: -40 to +125 °C
• High side floating supply offset voltage (VS): -3.2 to 150 V
• Switching frequency: up to 200 kHz

Absolute Maximum Ratings:

• Max supply voltage (VCC): 20 V
• Max high side floating supply voltage (VBS): 20 V
• Max high side driver output stage voltage (VB): 166 V
• Max junction/storage temperature: 150 °C

Key Specs:

• Peak output source current (IPKSo3): 500 mA (Typ. at VBS = 16V, Tj = 25 °C)
• Peak output sink current (IPKSi3): 500 mA (Typ. at IN = 5 V, VBS = 16 V, Tj = 25 °C)
• Output rise time (tr3): 0.1 μs (Typ. at VBS = 16 V, Tj = 25 °C)
• Output fall time (tf3): 0.1 μs (Typ. at VBS = 16 V, IN = 5 V, Tj = 25 °C)
• Input-to-output turn-on propagation delay (t plhi): 0.1 μs (Typ.)
• Input-to-output turn-off propagation delay (t phli): 0.1 μs (Typ.)
• VCC supply undervoltage positive going threshold (VCCUV+): 4.3 V (Max.)
• Allowable offset voltage slew rate (dV/dt): ±50 V/nsec

Features:

• High voltage rail up to 160 V
• dV/dt immunity ±50 V/nsec in full temperature range
• Driver current capability: 500 mA source, 500 mA sink
• Switching times 100 ns rise/fall with 2.5 nF load
• CMOS/TTL Schmitt trigger inputs with hysteresis
• Under voltage lock out
• Clamping on VCC
• Loading circuit for external Bootstrap capacitor
• Inverting input
• Reset circuitry

Applications:

• Driving N-Channel Power MOS transistors

Package:

• SO-8

• ■ High voltage rail up to 160 V
• ■ dV/dt immunity ±50 V/nsec in full temperature range
• ■ Driver current capability: 500 mA source, 500 mA sink
• ■ Switching times 100 ns rise/fall with 2.5 nF load
• ■ CMOS/TTL Schmitt trigger inputs with hysteresis
• ■ Under voltage lock out
• ■ Clamping on V CC
• ■ Loading circuit for external Bootstrap capacitor
• ■ Inverting input
• ■ Reset circuitry
• ■ SO-8 package

Table 1. Device summary

Figure 2. Pin connection (top view)

Table 2. Pin function

Table 2. Pin function

Unless otherwise specified, V CC = 5 V, V BS = 7 V, V S = 0 V, IN = 0 V, RES = 5 V, load R = 50 , C = 2.5 nF . Unless otherwise noted, these specifications apply for an operating ambient temperature range of -40 °C < T amb < 125 °C.

Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to GND, all currents are defined positive into any lead. An operation above the absolute maximum limit is not implied and can damage the part.

Table 4. Absolute maximum ratings

Table 4. Absolute maximum ratings

For proper operations the device should be used within the recommended conditions.

Table 5. Recommended operating conditions

Table 3. Thermal data

In order to meet environmental requirements, ST (also) offers these devices in ECOPACK ® packages. ECOPACK ® packages are lead-free. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label.

ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.

Figure 5. SO-8 mechanical data and package dimensions